Lawn sprinkler



Patented May 4, 1936,

LEWEN R. NELSON, OF PEGRIA, ILLINOIS.y

LAWN SPRINKLER.

Application nico. June 9, 1924. Serial No. 718,720.

To @ZZ whom t meg/ concern:

Be it known that I, Lnwnn it, NELSON, a citizen oit the United States, residing at Peoria, in the county of Peoria and State of illinois, have invented new and. use-ful linproi'fements in Lawn Sprinklers; and I doy hereby declare that the following is a a sprinkler of a new form that can be drawn up from sheet met-al.

Another object is to furnish a simple Jform of sprinkler-head made up of but two main parts one of which isprovided with periorations by which to discharge water streams over a complete semi-circular area and arranged so that said sprinkler-head may be changed to new locations without first requiring the water to be shut off, that the nut orftting for the attachment of the hose may be housed in the head out of harms way, and that can be drawn up from sheet metal in one piece, whose walls may be attached to the other portion or bottoi Another object is that of producing the body of a lawn sprinkler of a substantially flat semi-circular type whose sides and top are drawn from a single piece ot metal by means of dies, one of the walls of said body, termed its front, having a semi-circular form at a low level, the other or rear wall being straight but raised higher than the said iront wjall to admitinto it the customary nut Jior receiving anv usual hose lit-ting.

A urtherobject is to produce a sprinkler# body of a relatively squat form substantially semi-circular, and one that when filled with water when in use will not tilt due to strains imposed by the hose connected with it.

till another object is to provide an ez;- tremely rigid and strong sprinkler body ot" drawn metal of a substantially low ilat type semi-circular in form by forming in its top a series of concentric concave and convex surfaces and providing for said body an attached inwardly concave bottom which, while resisting internal water pressure, also permits the sprinkler to lie steadily upon uneven surfaces when in use. V

In the appended drawing forming part hereof,

Figure l shows my new lawn sprinkler in perspective as seen from the rear. A

Figure 2 is a plan oi the sprinkler shown on a larger scale.

Figure 3 is a transverse sectional elevation Floure klei', and ,l

liigure shows the under side oi' the sprinkler produced on a much smaller scale.

rihe body ott-he sprinkler is-designated as a whole by the character l, its bottom being denoted at 2. Said body is drawn from sheet metal as the best method of production and comprises what I shall term a front wall denoted at 3 which is of semi-circular outline and relatively low, while its rear wall t is straight and relatively higher at the middle portion ot its length, the said walls, as shown in the drawing, being substantially perpendicular to the plane ot the base ot said body. rlhe top of the,l latter at its highest point is domed as shown at 5, dropping oli into the said rear wall and suiiicientlyjhigh'above the base line to admit the threaded nut 6 that receivesthe litting ot a iose, not shown. The top ot the body at the base oi' the dome lies at a lower level than the latter land said rear wall, and is substantially flat, taking a semi-circular form, as 7, concentric to the dome and body-base, the outer margin `terminating in a shoulder 7 which drops away into a concave 8 likewise concentrically placed, outwjard from which the bod;7 falls away into the mentioned. low front wall 3, the latter being but little more than one-half the full height of the device including the dome 5.

rthe metal each side 'of the dome at the rear side oic the body is brought down into the straight integral rear wall l, the entire structure lescribed providing` avery rigid body which cannot be easily changed in form by blows or pressures thereon in use, the whole being thoroughly braced by the succession of concentric ridges and the vertical walls 3, 4. The free or lower edges of the wall lie in one plane and engage upon the bottom 2 described, the marginal edge of the latter and the said edges of the walls being rolled together, Figure 3, t-o make a thoroughly watertight joint. The bottom constitutes the closure for the sprinkler and the peculiar form thereof is notable in that it is braced as against internal water pressure by being concavedinwardly or in the direction of such pressure as clearly shown in Figures 3 and 5 and this concave forin'also peririts the sprinkler to lie upon and adapt itself readily to uneven surfaces.

A series of vperfo-rations l0 for the-'discharge of Water is forined in the concave surface 8 and such perforations are disposed at such positions in said concave surface that they discharge streams at different angles and thereby a considerable territory canl be sprinkled. Again, in the surface 7 are perfor-ations ll which project.' streams nearly rer.r. oally therefrom. All of the holes in the body are placed in. protected areas so that blovrs that might tend to dent the metal niust be received upon the convex bra-ced portions and the holes are not likely to be affected vant for that reason th'e direction of discharge of the streams-Will be constant.

'lheholes lin the concavesurfacc 8 extend over a complete half circular area, and, in order that this arrangement of holes may be best placed on'a surface maintained evenly over the body 'the Vlatter isextended rearwardly from or beyond the center from Which-the lines of holes are described. That is to say, the metal of the body in order to accoinn'iod-ate the holes to be thus laid o-ut must have a rearward' extension suiiicient to accommodate such arrangement before being brought Adown into the rear Wall l, this being` clear frein a study of Figure 2, for exa-mole, the dotted line parallel to the rear Wall Where it crosses the line 3 3 being the center from' which the lines of holes are struck. This extension providesa considera-ble space, also, for the introduction of the nut 6 While keepingV aV straight rear bracing Wall and Without complicating the forms of dies, and altogether providinga very simple construction.

'lhe sprinkler body is believed to be new since it is of extended semi-circular forln and substantially flat and kept as low as posysible at its forward or fro-nt Wall, but gradually rising into the concave and convex surfaces to the full height'of the doinefj, Which latter is just high enough to take beneath it the mentioned nut 6.

l have found thatV a sprinkler-body in order to -best maintain a level position and one that cannot be easily rocked upon the ground by twisting action of the hose under pressure of Water, inust be fairly heavy but at the saine tiine must be made of instal of light Weight in'order that the cost of manufacturemay be kept as low as possible. ylhe necessary Weight is obtained in the semicircular type'of sprinkler herein by making the body with a top and bottoni of the full area of the ground surface on which the body lies so that as large a bulk of Water as possible can be employed to hold the sprinkler firmly upon said ground surface, rather than to nia-ke said body ofthe open center type shown in iny prior latent No. 1,202,208 issued Oct. 24, 1916, and thus secure stability. Added to this is the described port-ion of the body that lies'reai1- Wardof the center about which the lines of perforations 10 are arranged which gives further and considerableY Weightof Water for stabilizing purposes;

I claim:

A lawnsprin'kler comprising a base of substantially seinicircular form having a marginal edge upon'the ground, a top of siinilar contour including an integral side wall and an integral rear straight Wall, both being brought doivn from the said top upon the margin of said bottoni and secured thereto, the space Within the Walls and between said bottom and top being a full receiving space for Water, a hose connection secured in the said rear Wall at the iniddle of the length thereof opening into the body-space, said rear wall being reduced in height at each side ofthe position of said hose connection, the said top of the body being domed at said :rear wall and being reduced in height tlfierefroin. in all directions ina succession of concentric zonesl of varying contour, the Zone.y adjacent the said side Wall being in-. Wardly and downwardly curved into said Wall and having perfor-ations therein concentric to the said deine of the top, the area of the said top and the said bottom together with the said side Wall eX- tending a considerable distancerearwardlyfrom the center about which the lines ofperforations are arranged. v

In testimony whereof I aix' inv signature.

LEWEN n. Nans-on.

arranged 

